The Waveguide Assembly, cataloged under National Stock Number 5985-01-258-1049, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-258-1049 |
| Primary Part Number | 037-003203-001 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Precious Material | SILVER |
| Flexibility | RIGID THIRD TUBING SEGMENT |
| Flexibility | FLEXIBLE SECOND TUBING SEGMENT |
| Flexibility | RIGID FIRST TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Surface Treatment | CHROMATE FIRST TUBING SEGMENT ALL SURFACES |
| Surface Treatment | CHROMATE THIRD TUBING SEGMENT ALL SURFACES |
| Surface Treatment | SILVER SECOND TUBING SEGMENT INSIDE SURFACES |
| Precious Material and Location | INTERNAL WAVEGUIDE SURFACE SILVER |
| Material | ALUMINUM ALLOY FIRST TUBING SEGMENT |
| Material | COPPER ALLOY SECOND TUBING SEGMENT |
| Material | ALUMINUM ALLOY THIRD TUBING SEGMENT |
| Material | ALUMINUM ALLOY ALL FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 037-003203-001 | Frontgrade Technologies Inc. (USA) |
| TDRFT10005 | Microwave Engineering Corporation (USA) |
| 037-003203-001 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| 037-003203-001 | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| 128000 | C/1 Advisory reference — outside the item-of-supply concept Frontgrade Technologies Inc. |
| 037-003203-001 | 5/9 Secondary reference Microwave Development Company Inc Dba Microwave Development Company Inc |
| 128000 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-258-1049 is a Waveguide Assembly, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-258-1049 has 4 manufacturer part numbers on file: 037-003203-001 (Frontgrade Technologies Inc.), TDRFT10005 (Microwave Engineering Corporation), 037-003203-001 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), 037-003203-001 (Microtech Inc Dba Microtech Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-424-6693. Verify interchangeability with system specifications before substitution.
Key specifications for 037-003203-001: Precious Material: SILVER; Flexibility: RIGID THIRD TUBING SEGMENT; Flexibility: FLEXIBLE SECOND TUBING SEGMENT; Flexibility: RIGID FIRST TUBING SEGMENT. 13 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-01-258-1049 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.